Furnace foe



L LEEDS.

Hot Air Fumace.

No. 13,432. I v Patented Aug. 14; 1855.

u. PETERS. Pnmuum m, Wnsivmgtn c,

UNITED STATES PATENT OFFICE.

JOSEPH LEEDS, OF PHILADELPHIA, PENNSYLVANIA.

FURNACE FOR HEATING BUILDINGS.

Specification of Letters Patent No. 13,432, dated August 14, 1855.

To all whom it may concern:

Be it known that I, JOSEPH LEEDS, of the city and county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Hot-Air Furnaces for Heating Buildings; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which Figure 1, represents a front elevation. Fig. 2, represents a vertical section, and Fig. 3, represents a horizontal section taken at the line :0, 00, of Fig. 2.

Similar letters in the several figures denote like parts.

The nature of my invention consists in combining with the fire pot or cylinder, a reservoir of water for supplying a wet surface against which the air first impinges to divest of its dust, and charge it with moisture, and a series of corrugated or zig zag plates, for enlarging the heating surface, and forming open fiues, for the moistened air to pass through.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawin 's.

IA, represents the outer shell or case of the furnace, which may be of galvanized iron, brick, or any other suit-able material, and of any desirable form or shape.

B, is the cold air chamber into which the air to be heated may be brought by an air duct, in any of the usual well known ways.

C, is the fire pot, and D, the ash pit; E, the grate and F the gas pipe for conveying away the products of combustion.

G, is a cone suspended under the gas pipe to throw the flame and heated gases toward and against the cylinder before they escape.

H is the hot air chamber, and I, the pipes for conveying the hot air to the registers.

J, is a crank for shaking the grate from the outside of the furnace.

The cylinder and fire pot may be composed of a series of tubes or semitubes K,

and to each of these tubes is connected a curved zig-zag fluted, or corrugated plate L, as seen in Fig. 3. These plates extend outward from the cylinder or fire box, to any desired distance, and possess a very large heating surface, against which the air impinges as it passes up through the furnace. The plates L, become heated by conduct-ion, and thus impart to the volume of ascending air a high degree of heat.

. Underneath the ash pit D, is a reservoir of water M, which may be supplied through the pipe N, or in any other convenient man ner. The bottom of the reservoir is of an inverted cone shape, and the top of it is fur nished with small holes or slots, which will allow the water to slowly flow out, and trickle down on the outside of the reservoir, and may lie in the bottom of the cold air chamber B, for two or three inches in depth, and the balance conveyed away by a pipe or otherwise. The object of thus introducing the water to the furnace, is twofold, first to surcharge the air that is to be heated with moisture, and secondly to cause the air as much as possible to strike against the wet sides of the cone, and deposit all its dust, and by this means taking into the furnace, and heating and conveying to the building or apartments to be heated, the very purest of air.

Having thus fully described the nature of my invention, what I claim therein as new and desire to secure by Letters Patent is Combining with the cylinder or fire pot of an air heating furnace, a reservoir or fountain of water M, which furnishes a wet surface against which the incoming air strikes for moistening it and depositing its dust and a series of curved zig-zag, fluted, or corrugated plates in the manner described, for enlarging the heating surface of the furnace, and forming air ducts for the heated air to pass through, substantially as described.

JOSEPH LEEDS. Witnesses:

BENJAMIN F. LEEDS, GEORGE F. OAT, Jr. 

